diff --git a/package/eigen/Config.in b/package/eigen/Config.in
index c7fcde243c..e94f9a3e0b 100644
--- a/package/eigen/Config.in
+++ b/package/eigen/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_EIGEN
 	bool "eigen"
+	depends on BR2_INSTALL_LIBSTDCPP
 	help
 	  Eigen is a C++ template library for linear algebra: vectors,
 	  matrices, and related algorithms. It is versatile, fast, elegant
@@ -11,3 +12,6 @@ config BR2_PACKAGE_EIGEN
 	  template library defined in the headers.
 
 	  http://eigen.tuxfamily.org/
+
+comment "eigen needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP